[in] Event handler function address.
This function must be declared as HNFN_STATISTICS.
Param
[in] Event handler parameter. This parameter is sent to the event handler each time it is called.
Return values:
If the function succeeds the return value will be the value of the pfOnStatistics parameter.
Description:
Use AdpSetOnStatistics to set the address and the parameter value for the OnStatistics
event handler. This event handler is called immediately after the requested statistics has been received
(AdpGetAsyncStatistics function call).